Minka 民家

choi

Lucy alexander, Japan Returns to Its Design Roots. A new generation is rediscovering 'minka' -- traditional handcrafted homes long out of favor with Japanese buyers. Now, younger buyers are dismantling, moving and rebuilding the homes, often left abandoned in remote areas. Wall Street Journal, Feb 17, 2017 (in the Mansion section).
https://www.wsj.com/articles/jap ... ollowing-1487258056
http://www.mansionglobal.com/es/ ... ain-a-new-following

Note:
(a) "Located in the popular beach town of Oiso, an hour south of Tokyo, a restored traditional Japanese home has huge windows overlooking the Pacific Ocean and a triple-height ceiling in the living room, where heavy black pine rafters intersect with slender bamboo beams. In the garden, a picturesque thatched hut overlooks a rotenburo outdoor bath."
(i) Ōiso, Kanagawa  (神奈川県 中郡) 大磯(町)
https://en.wikipedia.org/wiki/Ōiso,_Kanagawa

* 磯 in Japanese is a "rocky beach."
(ii) In English. there is double-height or triple-height lobby.
(iii) Go to images.google.com for (roof ridge rafter).

Whether called "ridge board" or "ridge beam," it is a piece of flat board, not round cylinder.
(iv) Japanese-English dictionary:
* rotenburo 露天風呂 【ろてんぶろ】 (n): "open air bath"
   ^ furo 風呂 【ふろ】 (n) (1) (See お風呂) bath; bathtub; (2) bathroom; bathhouse

* The f in furo is softened to b.

(b) "Osamu Akasaka 赤坂 修, who runs the Kanazawa Architectural Design Office"
(i) 古民家再生. 有限会社 金沢設計  Kanazawa Architectural Design Office, Inc  
http://www.kanazawasekkei.jp/
(located at 石川県金沢市)
(ii) Kanazawa
https://en.wikipedia.org/wiki/Kanazawa
(capital of Ishkawa prefecture)

(c) "Yasuhiro YAMASHITA 山下 保博 of Atelier Tekuto, a cutting-edge Tokyo architecture firm"

アトリエ・天工人
www.tekuto.com/en/